#131F64#131F64

#131F64 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.2% C 0.122 H 269.1°. Best body text is #FFFFFF at 14.92:1 contrast (WCAG AA passes).

Color values

HEX	#131F64
RGB	rgb(19, 31, 100)
HSL	hsl(231, 68%, 23%)
HSV	hsv(231, 81%, 39%)
CMYK	cmyk(81%, 69%, 0%, 60.8%)
CIE-LAB	lab(15.69, 22.45, -42.01)
CIE-LCH	lch(15.69, 47.63, 298.11°)
OKLab	oklab(28.21% -0.002 -0.1215)
OKLCH	oklch(28.21% 0.122 269.1)
XYZ	xyz(3.0580, 2.0382, 12.2864)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F64 #645813

analogous

#134764 #131F64 #2F1364

triadic

#131F64 #64131F #1F6413

tetradic

#131F64 #641347 #645813 #13642F

square

#131F64 #641347 #645813 #13642F

split-complementary

#131F64 #642F13 #476413

monochromatic

#05081A #090F31 #131F64 #1D2F97 #273FCB

Accessibility & contrast

On white

14.92

#131F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#131F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F64

14.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F64	#FFFFFF	#000000	##FFFFFF
##131F64	1.00	14.92	1.41	14.92
#FFFFFF	14.92	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B66

Deuteranopia (green-blind)

#002363

Tritanopia (blue-blind)

#00313E

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #131f64;
/* rgb */ color: rgb(19, 31, 100);
/* oklch */ color: oklch(28.2% 0.122 269.1);

Tailwind

colors: {
  custom: {
    50: '#605a91',
    500: '#131f64',
    950: '#000000',
  },
}

SCSS

$custom: #131f64;
$custom-light: #605a91;
$custom-dark: #000000;

JSON

{
  "hex": "#131f64",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 100
  },
  "hsl": {
    "h": 231.111,
    "s": 68.067,
    "l": 23.333
  },
  "oklch": {
    "l": 0.28205,
    "c": 0.12156,
    "h": 269.1
  },
  "luminance": 0.02039
}

Semantic roles & 50–950 ramp

primary

#131F64

secondary

#9C8D37

accent

#D13DEB

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#05030D

muted

#79787E

Preview Lab

Preview with #131F64

Body copy rendered with the generated semantic roles for this colour.

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